Healthline. https://www.healthline.com/health/sleeping-on-the-floor
Diakses pada 8 Agustus 2020Science Direct. https://www.sciencedirect.com/science/article/abs/pii/S2352721815001400?via%3Dihub
Diakses pada 8 Agustus 2020The Lancet. https://www.thelancet.com/journals/lancet/article/PIIS0140-6736(03)14792-7/fulltext
Diakses pada 8 Agustus 2020